Made of high quality high speed steel with high hardness, durable in use, good wear resistance and heat resistance, which is good for wood carving. These edges are designed for faster wood removal. and engraving drill bit set, now you can easily complete all kinds of wood carving projects with faster, more precise detail Just plug it into the drill and you're good to go Convenient and easy to use, so you can carve wood easily, convenient and easy to use, so you can carve wood with ease. Sharp high-speed steel, easily perform various wood carving projects with faster and more precise detail without hurting your hands This set has a universal handle that fits the most drilling tools and suitable for engraving and milling soft materials such as cork and plastic. Can be used for engraving, chamfering and chamfering, grooving, reaming, hollowing and other engraving operations. It is ideal for carving, carving, carving and other woodworking tasks